Get rid of what?
-Shadow cascading.
Look at these mods, they look superb.
But clearly, if you don't know what you have to deal with inside the game engine, even though it's literally Guilty GearStrive, your model will not look good.
This is why I've dedicated the past 4 years into making extensive explanations of what a good ANIME model needs in order to look good IN BLENDER.
Soon (depending on so many factors), I'll start posting content about Unreal Engine and I'll address all of these issues you see in some of the models (Notice Sato's flat uninteresting suit).
Keep practicing. Modeling, texturing, UV's, it's all about art.
-Cheers!
Pierre.